Insulator.



c. w. ROGERS.

INSULATOR.

APPLICATION FILED JUNE 5. 19M,

1,214,956. Patented Feb. 6,191?

INVENTOR, 52:55:5 (3M, C aP/es W 7 30 00 6,

S? V A TTORNE Y5,

CHARLES W. ROGERS, 0F EXETER, NEW HAMPSHIRE.

INSULATOR.

Specification of Letters Patent.

Patented Feb. 6, 1917.

Application filed June 5, 1914. Serial No. 843,294.

To all whom it may concern:

Be it known that I, Gi-mnLns IV. Roenns, a citizen of the United States, residing at Exeter, in the county of Rockingham, in the State of New Hampshire, have invented a certain new and useful Improvement in Insulators, of which the following is a specification, relerence being had to the accompanying drawings.

This invention relates to protective devices for insulating swaying electric wires from trees and the like fixed objects, my purpose being to prevent the chafing of the winding of such wires, as well as to pre vent the burning of trees by contact with high tension current wires.

I accomplish this desirable result by means of the device illustrated in the annexed drawings, in which Figure 1 is a side elevation of an insulator embodying my present improvements; the mid portion of the same being shown partly in section to disclose a thimble or collar of insulating material specially designed to center the Wire in the protective device.

Fig. 2 is a relatively enlarged end view of said protective device, and Fig. 3 is a transverse sectional view taken on the line 22 of Fig. 1. Fig. 4: is a longitudinal, central, sectional view of one end portion. lei said device, showing particularly the manner of assembling, and clamping together, the two-part tubular body of the said device and the end insulators, and Fig. 5 is a view of: the complete device as viewed from the top side.

Referring to these drawings, the letters 1/. and 1) indicate the two parts of the tubular body portion of my device, the same being here illustrated as circular in transverse section, but the shape is not material so long as the said body is tubular and therefore adapted to receive and protect the current wire, which latter is denoted by the reference letter 0, and is jacketed with insulation (Z of the ordinary wound, or other approved type. The tubular body thus provided may be 01 any required, or desired, length.

In order to center the Wire 0 in the said tubular body and also to insulate it from the said body (if the latter is made of metal) I insert in each end of the tube bushings g of porcelain, or the like material, formed of two half parts, with a central, longitudinal, opening just large enough to receive the wire 0 or its jacket of insulation, as will be understood by referenceto Fig. I of the drawings.

Each bushing g is shouldered down to fit into the tubular body, as at g, and the said body is turned down to receive a clamp strap it which might be simply of wire coiled tightly around the reduced portion of the tubular body and having its terminals twisted together, or it may be formed as here illustrated; that is to say with its ends bent oi'itward into parallel relation to each other and securely clamped together by a screw is and nut m as illustrated.

In order to center the wire in the tube and thus prevent it from contacting with said tube, I provide one or more bushings a of porcelain, or other suitable insulation, as seen in Fig. 1, said bushings being also formed of a plurality of separable sections and, by preference, I provide one or more drainage openings to release any Water that may find its way into the tube (1-1).

The centering bushings n are adjustably mounted on the wire, within the two-part tube, and may be varied as to position relative to said tube according to the length of the tube.

In practice my described insulating and protective device is clamped upon the current wire, or upon its insulated jacket, at points where the said wire or insulation might engage limbs or trunks of trees, the tubular body which I have described engaging, or being adjacent to, said limb or trunk as indicated in Figs. 1 and 5 or: the annexed drawings, in which the tree trunk or limb indicated by a dotted circle.

The metallic tube ab then receives the chafing resulting from continual contact and abrasion with the limb or trunk, and thus prevents any and all injury to the wire or its jacketed insulation, as well as prevent short circuits and the resulting burning oil? the tree.

Having thus described my invention, I claim as new and wish to secure by Letters Patent 1. An insulator comprising C0111Pl8111611- tary sections which when placed in confronting relation constitute a tubular menr her, a bushing insertible in each end of the member, clamping bands encircling the sections at each end for holding the same in clamped engagement, and also serving to prevent disengagement of the bushings, a line wire engaged in the bushings, and held 10 comprising two semicylindrical halves having metal Walls and insulating ends projecting therefrom having means for receiving and clamping the wire, the Walls having a free chamber therein between said ends and being provided with drain holes.

CHARLES W. ROGERS.

l/Vitnesses FRED. K. DAGGETT, AGNES BURKE.

denies m this patent may he obtained for five cents each, by addressing the tiommissioner of Patents, Washington, D. d. 

